If I'm grabbing a couple items, I can be in and out of my Costco on the way back from work in 10m if the timing is right.
replyBut yeah the wrong day, and it's 30m at least.
People go to Costco and only get a couple of things and not a cart load? You've got more self control than I.
replyI find it easier to do when I bike to Costco _without_ my trailer.
reply(I have two good sized panniers and can end up with ~$150 of foodstuffs packed well in them no problem. More often than not, I get less than that and add more stops to the trip to pick up from 3-4 places while out. And I get my exercise while I'm at it.)
When I lived closer to a Costco and had my membership, I used to do what I called cartless runs. Go into Costco, only buy what you can carry. Usually just the thing I needed and maybe one or two other things.
replyI do a similar thing. Stop at Costco to fill the gas tank, then buy a few things with no shopping cart.
replyPrevents wasting money on things I don't need, and makes the trip quick.